KR100477699B1 - 양자화 잡음 분포 조절 방법 및 장치 - Google Patents

양자화 잡음 분포 조절 방법 및 장치 Download PDF

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Publication number
KR100477699B1
KR100477699B1 KR10-2003-0002718A KR20030002718A KR100477699B1 KR 100477699 B1 KR100477699 B1 KR 100477699B1 KR 20030002718 A KR20030002718 A KR 20030002718A KR 100477699 B1 KR100477699 B1 KR 100477699B1
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KR
South Korea
Prior art keywords
quantization noise
quantization
noise
frequency band
calculated
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KR10-2003-0002718A
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English (en)
Korean (ko)
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KR20040065641A (ko
Inventor
장흥엽
장태규
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삼성전자주식회사
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Priority to KR10-2003-0002718A priority Critical patent/KR100477699B1/ko
Priority to US10/720,762 priority patent/US7373293B2/en
Priority to CNB2004100015234A priority patent/CN1249671C/zh
Publication of KR20040065641A publication Critical patent/KR20040065641A/ko
Application granted granted Critical
Publication of KR100477699B1 publication Critical patent/KR100477699B1/ko

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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/03—Spectral prediction for preventing pre-echo; Temporary noise shaping [TNS], e.g. in MPEG2 or MPEG4
KR10-2003-0002718A 2003-01-15 2003-01-15 양자화 잡음 분포 조절 방법 및 장치 KR100477699B1 (ko)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR10-2003-0002718A KR100477699B1 (ko) 2003-01-15 2003-01-15 양자화 잡음 분포 조절 방법 및 장치
US10/720,762 US7373293B2 (en) 2003-01-15 2003-11-25 Quantization noise shaping method and apparatus
CNB2004100015234A CN1249671C (zh) 2003-01-15 2004-01-13 量化噪声整形方法及装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR10-2003-0002718A KR100477699B1 (ko) 2003-01-15 2003-01-15 양자화 잡음 분포 조절 방법 및 장치

Publications (2)

Publication Number Publication Date
KR20040065641A KR20040065641A (ko) 2004-07-23
KR100477699B1 true KR100477699B1 (ko) 2005-03-18

Family

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KR10-2003-0002718A KR100477699B1 (ko) 2003-01-15 2003-01-15 양자화 잡음 분포 조절 방법 및 장치

Country Status (3)

Country Link
US (1) US7373293B2 (zh)
KR (1) KR100477699B1 (zh)
CN (1) CN1249671C (zh)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7620545B2 (en) * 2003-07-08 2009-11-17 Industrial Technology Research Institute Scale factor based bit shifting in fine granularity scalability audio coding
DE102004009955B3 (de) * 2004-03-01 2005-08-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Ermitteln einer Quantisierer-Schrittweite
CN1588806B (zh) * 2004-09-03 2010-04-28 浙江大学 量化噪声整形调制器及量化噪声整形方法
KR100943606B1 (ko) * 2006-03-30 2010-02-24 삼성전자주식회사 디지털 통신 시스템에서 양자화 장치 및 방법
US20070270987A1 (en) * 2006-05-18 2007-11-22 Sharp Kabushiki Kaisha Signal processing method, signal processing apparatus and recording medium
ATE531038T1 (de) * 2007-06-14 2011-11-15 France Telecom Nachbearbeitung zur reduzierung des quantifizierungsrauschens eines codierers während der decodierung
JP5618826B2 (ja) * 2007-06-14 2014-11-05 ヴォイスエイジ・コーポレーション Ｉｔｕ．ｔ勧告ｇ．７１１と相互運用可能なｐｃｍコーデックにおいてフレーム消失を補償する装置および方法
CN101388215B (zh) * 2007-09-15 2011-01-12 华为技术有限公司 一种噪声整形的方法和装置
KR101435411B1 (ko) * 2007-09-28 2014-08-28 삼성전자주식회사 심리 음향 모델의 마스킹 효과에 따라 적응적으로 양자화간격을 결정하는 방법과 이를 이용한 오디오 신호의부호화/복호화 방법 및 그 장치
KR101518532B1 (ko) * 2008-07-11 2015-05-07 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 오디오 인코더, 오디오 디코더, 오디오 신호, 오디오 스트림을 부호화 및 복호화하는 장치 및 컴퓨터 프로그램
US8473287B2 (en) 2010-04-19 2013-06-25 Audience, Inc. Method for jointly optimizing noise reduction and voice quality in a mono or multi-microphone system
US8538035B2 (en) 2010-04-29 2013-09-17 Audience, Inc. Multi-microphone robust noise suppression
US8606571B1 (en) * 2010-04-19 2013-12-10 Audience, Inc. Spatial selectivity noise reduction tradeoff for multi-microphone systems
US8781137B1 (en) 2010-04-27 2014-07-15 Audience, Inc. Wind noise detection and suppression
US8447596B2 (en) 2010-07-12 2013-05-21 Audience, Inc. Monaural noise suppression based on computational auditory scene analysis
WO2012137617A1 (ja) 2011-04-05 2012-10-11 日本電信電話株式会社 符号化方法、復号方法、符号化装置、復号装置、プログラム、記録媒体
US9530419B2 (en) 2011-05-04 2016-12-27 Nokia Technologies Oy Encoding of stereophonic signals
CN104095640A (zh) * 2013-04-03 2014-10-15 达尔生技股份有限公司 血氧饱和度检测方法及装置
US20180317019A1 (en) 2013-05-23 2018-11-01 Knowles Electronics, Llc Acoustic activity detecting microphone
CN105431902B (zh) 2013-06-10 2020-03-31 弗朗霍夫应用科学研究促进协会 用于音频信号包络编码、处理和解码的装置和方法
ES2819032T3 (es) * 2013-12-19 2021-04-14 Ericsson Telefon Ab L M Estimación de ruido de fondo en señales de audio
WO2016112113A1 (en) 2015-01-07 2016-07-14 Knowles Electronics, Llc Utilizing digital microphones for low power keyword detection and noise suppression
US9576589B2 (en) * 2015-02-06 2017-02-21 Knuedge, Inc. Harmonic feature processing for reducing noise
WO2017219277A1 (zh) * 2016-06-22 2017-12-28 张升泽 电子芯片的噪声绘制方法及系统
CN106096174A (zh) * 2016-06-22 2016-11-09 张升泽 电子芯片的噪声绘制方法及系统
EP3651365A4 (en) * 2017-07-03 2021-03-31 Pioneer Corporation SIGNAL PROCESSING DEVICE, CONTROL PROCESS, PROGRAM, AND INFORMATION SUPPORT
US10559315B2 (en) * 2018-03-28 2020-02-11 Qualcomm Incorporated Extended-range coarse-fine quantization for audio coding
US11295750B2 (en) * 2018-09-27 2022-04-05 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for noise shaping using subspace projections for low-rate coding of speech and audio
US11170799B2 (en) * 2019-02-13 2021-11-09 Harman International Industries, Incorporated Nonlinear noise reduction system
CN113360124B (zh) * 2020-03-05 2023-07-18 Oppo广东移动通信有限公司 音频输入输出控制方法和装置、电子设备、可读存储介质
US11418901B1 (en) 2021-02-01 2022-08-16 Harman International Industries, Incorporated System and method for providing three-dimensional immersive sound

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3191457B2 (ja) * 1992-10-31 2001-07-23 ソニー株式会社 高能率符号化装置、ノイズスペクトル変更装置及び方法
EP0820624A1 (en) * 1995-04-10 1998-01-28 Corporate Computer Systems, Inc. System for compression and decompression of audio signals for digital transmission
JP3189660B2 (ja) * 1996-01-30 2001-07-16 ソニー株式会社 信号符号化方法
JP3328532B2 (ja) * 1997-01-22 2002-09-24 シャープ株式会社 デジタルデータの符号化方法
SE9700772D0 (sv) * 1997-03-03 1997-03-03 Ericsson Telefon Ab L M A high resolution post processing method for a speech decoder
DE19736669C1 (de) * 1997-08-22 1998-10-22 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum Erfassen eines Anschlags in einem zeitdiskreten Audiosignal sowie Vorrichtung und Verfahren zum Codieren eines Audiosignals
US6466912B1 (en) * 1997-09-25 2002-10-15 At&T Corp. Perceptual coding of audio signals employing envelope uncertainty
JPH11234136A (ja) * 1998-02-19 1999-08-27 Sanyo Electric Co Ltd デジタルデータの符号化方法及び符号化装置
KR100548891B1 (ko) * 1998-06-15 2006-02-02 마츠시타 덴끼 산교 가부시키가이샤 음성 부호화 장치 및 음성 부호화 방법
JP3784993B2 (ja) * 1998-06-26 2006-06-14 株式会社リコー 音響信号の符号化・量子化方法
JP3739959B2 (ja) * 1999-03-23 2006-01-25 株式会社リコー デジタル音響信号符号化装置、デジタル音響信号符号化方法及びデジタル音響信号符号化プログラムを記録した媒体
US6499010B1 (en) * 2000-01-04 2002-12-24 Agere Systems Inc. Perceptual audio coder bit allocation scheme providing improved perceptual quality consistency
EP1310099B1 (en) * 2000-08-16 2005-11-02 Dolby Laboratories Licensing Corporation Modulating one or more parameters of an audio or video perceptual coding system in response to supplemental information
JP2002196792A (ja) * 2000-12-25 2002-07-12 Matsushita Electric Ind Co Ltd 音声符号化方式、音声符号化方法およびそれを用いる音声符号化装置、記録媒体、ならびに音楽配信システム
KR100400226B1 (ko) * 2001-10-15 2003-10-01 삼성전자주식회사 음성 부재 확률 계산 장치 및 방법과 이 장치 및 방법을이용한 잡음 제거 장치 및 방법
US6950794B1 (en) * 2001-11-20 2005-09-27 Cirrus Logic, Inc. Feedforward prediction of scalefactors based on allowable distortion for noise shaping in psychoacoustic-based compression
US7328151B2 (en) * 2002-03-22 2008-02-05 Sound Id Audio decoder with dynamic adjustment of signal modification

Also Published As

Publication number Publication date
US7373293B2 (en) 2008-05-13
CN1249671C (zh) 2006-04-05
CN1517980A (zh) 2004-08-04
US20040170290A1 (en) 2004-09-02
KR20040065641A (ko) 2004-07-23

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